woodsman87 said:
I didn't really mean that they eat them all up. I see where you mis-understood me. Usually by mid November, in my experience, deer hitting acorns are about done. I guess they eat up all the fresh ones and the ones they don't eat fast enough go to germ.
I have seen red oak acrons lay there all winter, nothing wrong with them, and deer pass them. I also used to hunt a place in AL that had one particular Red Oak that the deer always ate before the white oak. It was a Northern Red Oak. I have no idea why.
White oak variety acorns are THE preferred acorn because of their lower tannin content (tannin is what makes acorns taste bitter). However, that lower tannin content is also what allows white oak acorns to go to root in late fall. Hence deer wolf down all the white oak acorns while they can, before the acorns go to root. Once the white oaks acorns have germinated, deer will shift to red oak acorns. Red oak acorns have more tannin, which makes them more bitter, but that extra tannin allows them to stay viable until spring (when they eventually go to root). White oak variety acorns are important for loading up deer with pre-rut fat resources, but red oak acorns, which are viable all winter, are what really drive herd health. Winter is the critical time of year for deer in TN, and I would much rather see a good red oak acorn crop than a white oak acorn crop. Unfortunately, red oak acorn crops in the Southeast are far more "iffy" than white oak acorn crops.
If you are seeing red oaks acorn going untouched, you probably have a large red oak acorn crop, as they are still the highest preferred (and healthiest) winter food, once white oak acorns have gone to root.